Increasing Plant Growth A gardening company is testing new ways to improve plant growth. Twelve plants are randomly selected and exposed to a combination of two factors, a “Grow-light” in two...

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   Increasing Plant GrowthA gardening company is testing new ways to improve plant growth. Twelve plants are randomly selected and exposed to a combination of two factors, a “Grow-light” in two different strengths and a plant food supplement with different mineral supplements. After a number of days, the plants are measured for growth, and the results (in inches) are put into the appropriate boxes.

Can an interaction between the two factors be concluded? Is there a difference in mean growth with respect to light? With respect to plant food? Useα = 0.05.